water overflows

[pulsarman1]

take pulsar 4 a good run does not overheat but when i turn engine off after about 1 min water expands and flows out of overflow on filler bottle any help

 

[garyRR]

hi mate i could be wrong but it sounds like a air lock or maybe a new thermostat perhaps, try bleeding the system,bleed srew is at the top of the thermostat housing